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Jared "Cook"
(hexbear.net)
Banned? DM Wmill to appeal.
No anti-nautilism posts. See: Eco-fascism Primer
Slop posts go in c/slop. Don't post low-hanging fruit here.
15 minutes isn't caramelizing them though, it's browning them. It's the same reason you can't cook a cake at 450° for a shorter time when directions are 350°
You might bring them to the same end temperature, but there are reactions occurring which take time in both examples that higher heat will not make happen faster.
A French onion soup with 15 minute caramelized onions would not be good